1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dexar [7]
4 years ago
14

What is speed of a particle?

Physics
2 answers:
Galina-37 [17]4 years ago
8 0
The speed of a particle is the instantaneous rate at which its distance of travel
is changing.

Over any finite period of time, its speed is:

               (distance traveled) / (time to travel the distance).

The direction of travel is irrelevant to a description of speed.
Mashutka [201]4 years ago
3 0
SPEED = total DIST. traveled / total time taken
You might be interested in
Ted lifts a 10N weight at a height of 1.5 m in 1
masha68 [24]

Answer:

D. Ted expanded more power.

Explanation:

Given the following data;

For Ted.

Force = 10N

Height = 1.5m

Time = 1 seconds

To find Ted's power;

Power = workdone/time

But workdone = force * distance

Workdone = 10 * 1.5

Workdone = 15 Nm

Power = 15/1

Power = 15 Watts.

For Johnny.

Force = 10N

Height = 1.5m

Time = 2 seconds

To find Ted's power;

Power = workdone/time

But workdone = force * distance

Workdone = 10 * 1.5

Workdone = 15 Nm

Power = 15/2

Power = 7.5 Watts

Therefore, from the calculations we can deduce and conclude that Ted expanded more power.

5 0
3 years ago
While riding on I-26 towards Columbia, your mother slams on the brakes, to avoid hitting the car in front of her. Both of your b
emmasim [6.3K]

Hi,

Newton's Law of Inertia explains this action because the resistance of the seat belt allows the change in its state of motion. So because the change of speed, your body moves forward but is restricted by the seat belt.

Have a great day!

4 0
3 years ago
Describe how the life cycle of a low-mass star differs from the life cycle of a high-mass star. PLZZZZ ANSWER FAST
Alex Ar [27]
 <span>As the core collapses, the </span>outer<span> layers of the star are expelled. A planetary nebula is formed by the </span>outer <span>layers. The core remains as a white dwarf and eventually cools to become a black dwarf. that is what would happen to a star with a low mass like our sun also the life time of a star depends on it's mass. A larger mass star will colapse and turn into a black hole.</span><span>
</span>
8 0
4 years ago
The spectrum from a hydrogen vapour lamp is measured and four lines in the visible light range are observed. These lines are the
Elan Coil [88]

Answer:

10942249.24 m^{-1}

Explanation:

Rydberg's formula is used to describe the wavelengths of the spectral lines of chemical elements similar to hydrogen, that is, with only one electron being affected by the effective nuclear charge. In this formula we can find the rydberg constant, knowing the wavelength emitted in the transcision between two energy states, we can have a value of the constant.

\frac{1}{\lambda}=Z^2R(\frac{1}{n^2_{1}}-\frac{1}{n^_{2}^2}})

Where \lambda it is the wavelength of the light emitted, R is the Rydberg constant, Z is the atomic number  of the element and n_{1} n_{2} are the states where n_{1}.

In this case we have Z=1 for hydrogen, solving for R:

R=\frac{1}{\lambda}*(\frac{1}{n^2_{1}}-\frac{1}{n^_{2}^2}})^{-1}\\R=\frac{1}{658.9*10^{-9}m}*(\frac{1}{2^2}-\frac{1}{3^2}})^{-1}\\R=1.52*10^6m^{-1}*(\frac{36}{5})=1.09*10^7 m^{-1}=10942249.24m^{-1}

This value is quite close to the theoretical value of the constant R=10967758.34 m^{-1}

5 0
4 years ago
A 1,000 kg car travels at 15 m/s.<br> What is its momentum?
Nezavi [6.7K]

Answer:

15,000 kg.m/s

Explanation:

p=mv

p=(1000)(15)

p=15,000 kg.m/s

4 0
3 years ago
Other questions:
  • If the sun were to vanish instantly would earth immediately fly out of its orbit explain why or why not
    8·1 answer
  • Write a conclusion to the question, "What happens if we mix different amounts of hot and cold water?"
    13·1 answer
  • A block with a weight of 3.0 N is at rest on a horizontal surface.A 1.0 N upward force is applied to the block by means of an at
    11·1 answer
  • You are driving a car with an automatic transmission; the shifter is mounted on the steering column. When you press down on the
    8·1 answer
  • A salt is dissolved in water which has a freezing point of 0 degrees celsius. the freezing point of the solution would be
    13·2 answers
  • A 5.6 V battery is connected in series with a 41 mH inductor, a 100 Ω resistor, and an open switch. At what time after the switc
    12·1 answer
  • What do we get when two sound waves of slightly different frequencies interfere with each other?
    5·2 answers
  • What can be assumed about how the train is moving?
    13·1 answer
  • Fast need answers <br>Find the amount of force if the body has pressure of 178 Pa on 18 mm²​
    5·1 answer
  • Choose a starting point in United states to sail back to Africa. Determine the wind and current correction vectors that would ta
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!